Experimental evaluation of the energy transfer within wet operated stirred media mills

  • Wet-operated stirred media mills are commonly used in the field of fine and ultra-fine grinding. Depending on the application, there are different mill geometries and mill equipment materials of which the grinding chamber lining and the stirrer are made. Polyurethane and ceramics are frequently implemented materials. Besides the process-relevant effects such as cooling and wear prevention, an energy efficient mill operation is intended, which can be achieved, by using mechanistic stress models. Here, besides the mill geometry, the process parameters, various energy-transfer-coefficients are also determined. In this work, the effect of different mill equipment materials on the mill-related-energy-transfer-coefficient are investigated by experiments while operating different mills only with water and grinding media but without feed material. It was found that the mill equipment material has a significant effect on the power consumption and thus, the energy transfer within the mill as a result of friction between different materials.

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Metadaten
Author:David Sterling, Sandra Breitung-FaesORCiD, Arno Kwade
DOI:https://doi.org/10.1016/j.powtec.2023.118579
ISSN:0032-5910
Parent Title (English):Powder Technology
Publisher:Elsevier BV
Document Type:Article
Language:English
Release Date:2024/08/14
Tag:Advanced stress model; Energy efficiency; Energy transfer coefficient; Grinding chamber and stirrer materials; Stirred media mill
Volume:425
Article Number:118579
Pagenumber:17
institutes:Fakultät Verfahrenstechnik
Research Themes:Materialien & Produktionstechnik
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